这个免费的PD f库正是我在本文中会用到的库。
这正是我们发布公共api以及免费提供搜索工具的原因。
This is why we published public APIs and freely-available search tools.
手机游戏中的虚拟货币是其大众化的巨大推动力，苹果应用商店最受欢迎前300名免费游戏有35%正是以程序内购买作为其货币化模式。
Virtual currencies in mobile games are a huge driving force for popularity of apps, with 35 percent of the top 300 free games in the Apple app Store using in-app purchases as their monetization model.
免费推广营销正是你不应该错失的机会。
Free marketing is precisely the kind of opportunity you don’t want to miss.
杰弗逊笔下的从思想衍生的意念，正是一种不存在缺乏的免费资源。
What Jefferson noted is the wonderful feature of a non-scarce, orinfinite, good that it is effectively a free resource.
微软的Office系列收费软件正是如此，它现在的功能强大到几乎超出所有人的预想，可Google和其他公司却提供了仅有基本功能却完全免费的在线文字处理和电子表格软件。
That could be a description of Microsoft’s Office, which now does more than almost anybody could wish for-even as Google and others are offering free basic word-processors and spreadsheets online.
这正是“天下没有免费的午餐”规律的一个例子：局部获利是以全局损失为代价的，很多时候情况恰恰是这样。
It's an example of the law that there is no such thing as a free lunch: the cost of the local gain is a global loss-just as it often is.
他们使用的甚至是一些没有绝对竞争力的科技产品，这些产品免费赠送，但事实是正是这些产品赢得人们的时间和注意力。
These are not even necessarily competitive technologies, they are complimentary, but the fact is that they all compete for peoples' time and attention.
正如早先提到的，很多人认为AT M交易的合理费用是根本不收费，这正是免费AT M所提供的。
As mentioned earlier, most people think that the proper fee for an ATM transaction is no fee at all, and that's what Free ATMs NYC delivers.
嫌疑人在佛罗里达州被逮捕，正是他将黑客入侵窃取来的照片免费发到各大网站上。
The suspect was arrested in Florida and is believed to have distributed any images obtained from the hacking to websites for free.
于是我开怀大笑了起来，而这正是我当晚需要的，他甚至不要我给他免费的啤酒作为道歉。
It was the laugh I needed that night, and he wouldn't even let me give him a free beer as an apology.
于是我开怀大笑了起来，而这正是我当晚需要的，他甚至不要我给他免费的啤酒作为道歉。
It was the laugh I needed that night, and he wouldn't even let me give him a free beer as an apology.
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